It's held down by a vacuum table, but you're right. After the pockets, center hole and outline are cut there isn't a hell of a lot of surface area to hold it. Also, that pad, for lack of a better word, beneath the part so they don't cut into the table, must be porous so the vacuum can reach the part. After so much is cut away there must be a large amount of wasted vacuum. It must be a hell of a pump/reservoir to maintain enough vacuum on the part.

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These statements have not been evaluated by the FDA, EPA, FBI, DEA, CDC, or FDIC. These statements are not intended to diagnose, cause, treat, cure, or prevent any disease. If you feel you have been harmed/offended by, or, disagree with any of the above statements or images, please feel free to fuck right off.

The only thing being blocked from view is part of the valve cover by what I'd guess is the accumulator tubes for the intake system.

The only part of the engine in view is part of the valve cover.

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When I show him these pics, this guy I know is going to have a genuine conniption.

He loves those '60's Econoline vans & pick-ups. And he's a purist, too, thinks everyone of them ought to to be bone stock and factory.

I hope he shits his pants.

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These statements have not been evaluated by the FDA, EPA, FBI, DEA, CDC, or FDIC. These statements are not intended to diagnose, cause, treat, cure, or prevent any disease. If you feel you have been harmed/offended by, or, disagree with any of the above statements or images, please feel free to fuck right off.